src/mesa/drivers/dri/radeon/radeon_maos_vbtmp.h

   1 /*
   2  * Mesa 3-D graphics library
   3  * Version:  4.1
   4  *
   5  * Copyright (C) 1999-2002  Brian Paul   All Rights Reserved.
   6  *
   7  * Permission is hereby granted, free of charge, to any person obtaining a
   8  * copy of this software and associated documentation files (the "Software"),
   9  * to deal in the Software without restriction, including without limitation
  10  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
  11  * and/or sell copies of the Software, and to permit persons to whom the
  12  * Software is furnished to do so, subject to the following conditions:
  13  *
  14  * The above copyright notice and this permission notice shall be included
  15  * in all copies or substantial portions of the Software.
  16  *
  17  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
  18  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  19  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  20  * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
  21  * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
  22  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  23  *
  24  * Authors:
  25  *    Keith Whitwell <keith@tungstengraphics.com>
  26  */
  27
  28 #ifndef LOCALVARS
  29 #define LOCALVARS
  30 #endif
  31
  32 #undef TCL_DEBUG
  33 #ifndef TCL_DEBUG
  34 #define TCL_DEBUG 0
  35 #endif
  36
  37 static void TAG(emit)( GLcontext *ctx,
  38                        GLuint start, GLuint end,
  39                        void *dest )
  40 {
  41    LOCALVARS
  42       struct vertex_buffer *VB = &TNL_CONTEXT(ctx)->vb;
  43    GLuint (*tc0)[4], (*tc1)[4], (*tc2)[4];
  44    GLfloat (*col)[4], (*spec)[4];
  45    GLfloat (*fog)[4];
  46    GLuint (*norm)[4];
  47    GLuint tc0_stride, tc1_stride, col_stride, spec_stride, fog_stride;
  48    GLuint tc2_stride, norm_stride;
  49    GLuint fill_tex = 0;
  50    GLuint rqcoordsnoswap = 0;
  51    GLuint (*coord)[4];
  52    GLuint coord_stride; /* object coordinates */
  53    GLubyte dummy[4];
  54    int i;
  55
  56    union emit_union *v = (union emit_union *)dest;
  57
  58    if (RADEON_DEBUG & DEBUG_VERTS)
  59       fprintf(stderr, "%s\n", __FUNCTION__);
  60
  61    coord = (GLuint (*)[4])VB->ObjPtr->data;
  62    coord_stride = VB->ObjPtr->stride;
  63
  64    if (DO_TEX2) {
  65       if (VB->TexCoordPtr[2]) {
  66          const GLuint t2 = GET_TEXSOURCE(2);
  67          tc2 = (GLuint (*)[4])VB->TexCoordPtr[t2]->data;
  68          tc2_stride = VB->TexCoordPtr[t2]->stride;
  69          if (DO_PTEX && VB->TexCoordPtr[t2]->size < 3) {
  70          /* since DO_PTEX is only true when we have 3 or more coords
  71             in the first place we don't really need this right? */
  72             fill_tex |= (1<<2);
  73          }
  74          else if (DO_PTEX && VB->TexCoordPtr[t2]->size < 4) {
  75             rqcoordsnoswap |= (1<<2);
  76          }
  77       } else {
  78          tc2 = (GLuint (*)[4])&ctx->Current.Attrib[VERT_ATTRIB_TEX2];
  79          tc2_stride = 0;
  80       }
  81    }
  82
  83    if (DO_TEX1) {
  84       if (VB->TexCoordPtr[1]) {
  85          const GLuint t1 = GET_TEXSOURCE(1);
  86          tc1 = (GLuint (*)[4])VB->TexCoordPtr[t1]->data;
  87          tc1_stride = VB->TexCoordPtr[t1]->stride;
  88          if (DO_PTEX && VB->TexCoordPtr[t1]->size < 3) {
  89             fill_tex |= (1<<1);
  90          }
  91          else if (DO_PTEX && VB->TexCoordPtr[t1]->size < 4) {
  92             rqcoordsnoswap |= (1<<1);
  93          }
  94       } else {
  95          tc1 = (GLuint (*)[4])&ctx->Current.Attrib[VERT_ATTRIB_TEX1];
  96          tc1_stride = 0;
  97       }
  98    }
  99
 100    if (DO_TEX0) {
 101       if (VB->TexCoordPtr[0]) {
 102          const GLuint t0 = GET_TEXSOURCE(0);
 103          tc0_stride = VB->TexCoordPtr[t0]->stride;
 104          tc0 = (GLuint (*)[4])VB->TexCoordPtr[t0]->data;
 105          if (DO_PTEX && VB->TexCoordPtr[t0]->size < 3) {
 106             fill_tex |= (1<<0);
 107          }
 108          else if (DO_PTEX && VB->TexCoordPtr[t0]->size < 4) {
 109             rqcoordsnoswap |= (1<<0);
 110          }
 111       } else {
 112          tc0 = (GLuint (*)[4])&ctx->Current.Attrib[VERT_ATTRIB_TEX0];
 113          tc0_stride = 0;
 114       }
 115
 116    }
 117
 118    if (DO_NORM) {
 119       if (VB->NormalPtr) {
 120          norm_stride = VB->NormalPtr->stride;
 121          norm = (GLuint (*)[4])VB->NormalPtr->data;
 122       } else {
 123          norm_stride = 0;
 124          norm = (GLuint (*)[4])&ctx->Current.Attrib[VERT_ATTRIB_NORMAL];
 125       }
 126    }
 127
 128    if (DO_RGBA) {
 129       if (VB->ColorPtr[0]) {
 130          col = VB->ColorPtr[0]->data;
 131          col_stride = VB->ColorPtr[0]->stride;
 132       } else {
 133          col = (GLfloat (*)[4])ctx->Current.Attrib[VERT_ATTRIB_COLOR0];
 134          col_stride = 0;
 135       }
 136    }
 137
 138    if (DO_SPEC) {
 139       if (VB->SecondaryColorPtr[0]) {
 140          spec = VB->SecondaryColorPtr[0]->data;
 141          spec_stride = VB->SecondaryColorPtr[0]->stride;
 142       } else {
 143          spec = (GLfloat (*)[4])ctx->Current.Attrib[VERT_ATTRIB_COLOR1];
 144          spec_stride = 0;
 145       }
 146    }
 147
 148    if (DO_FOG) {
 149       if (VB->FogCoordPtr) {
 150          fog = VB->FogCoordPtr->data;
 151          fog_stride = VB->FogCoordPtr->stride;
 152       } else {
 153          fog = (GLfloat (*)[4])&dummy; fog[0][0] = 0.0F;
 154          fog_stride = 0;
 155       }
 156    }
 157
 158
 159    if (start) {
 160       coord =  (GLuint (*)[4])((GLubyte *)coord + start * coord_stride);
 161       if (DO_TEX0)
 162          tc0 =  (GLuint (*)[4])((GLubyte *)tc0 + start * tc0_stride);
 163       if (DO_TEX1)
 164          tc1 =  (GLuint (*)[4])((GLubyte *)tc1 + start * tc1_stride);
 165       if (DO_TEX2)
 166          tc2 =  (GLuint (*)[4])((GLubyte *)tc2 + start * tc2_stride);
 167       if (DO_NORM)
 168          norm =  (GLuint (*)[4])((GLubyte *)norm + start * norm_stride);
 169       if (DO_RGBA)
 170          STRIDE_4F(col, start * col_stride);
 171       if (DO_SPEC)
 172          STRIDE_4F(spec, start * spec_stride);
 173       if (DO_FOG)
 174          STRIDE_4F(fog, start * fog_stride);
 175    }
 176
 177
 178    {
 179       for (i=start; i < end; i++) {
 180
 181          v[0].ui = coord[0][0];
 182          v[1].ui = coord[0][1];
 183          v[2].ui = coord[0][2];
 184          if (DO_W) {
 185             v[3].ui = coord[0][3];
 186             v += 4;
 187          }
 188          else
 189             v += 3;
 190          coord =  (GLuint (*)[4])((GLubyte *)coord +  coord_stride);
 191
 192          if (DO_NORM) {
 193             v[0].ui = norm[0][0];
 194             v[1].ui = norm[0][1];
 195             v[2].ui = norm[0][2];
 196             v += 3;
 197             norm =  (GLuint (*)[4])((GLubyte *)norm +  norm_stride);
 198          }
 199          if (DO_RGBA) {
 200             UNCLAMPED_FLOAT_TO_UBYTE(v[0].rgba.red, col[0][0]);
 201             UNCLAMPED_FLOAT_TO_UBYTE(v[0].rgba.green, col[0][1]);
 202             UNCLAMPED_FLOAT_TO_UBYTE(v[0].rgba.blue, col[0][2]);
 203             UNCLAMPED_FLOAT_TO_UBYTE(v[0].rgba.alpha, col[0][3]);
 204             STRIDE_4F(col, col_stride);
 205             v++;
 206          }
 207          if (DO_SPEC || DO_FOG) {
 208             if (DO_SPEC) {
 209                UNCLAMPED_FLOAT_TO_UBYTE(v[0].rgba.red, spec[0][0]);
 210                UNCLAMPED_FLOAT_TO_UBYTE(v[0].rgba.green, spec[0][1]);
 211                UNCLAMPED_FLOAT_TO_UBYTE(v[0].rgba.blue, spec[0][2]);
 212                STRIDE_4F(spec, spec_stride);
 213             }
 214             if (DO_FOG) {
 215                UNCLAMPED_FLOAT_TO_UBYTE(v[0].rgba.alpha, fog[0][0]);
 216                fog = (GLfloat (*)[4])((GLubyte *)fog + fog_stride);
 217             }
 218             if (TCL_DEBUG) fprintf(stderr, "%x ", v[0].ui);
 219             v++;
 220          }
 221          if (DO_TEX0) {
 222             v[0].ui = tc0[0][0];
 223             v[1].ui = tc0[0][1];
 224             if (TCL_DEBUG) fprintf(stderr, "t0: %.2f %.2f ", v[0].f, v[1].f);
 225             if (DO_PTEX) {
 226                if (fill_tex & (1<<0))
 227                   v[2].f = 1.0;
 228                else if (rqcoordsnoswap & (1<<0))
 229                   v[2].ui = tc0[0][2];
 230                else
 231                   v[2].ui = tc0[0][3];
 232                if (TCL_DEBUG) fprintf(stderr, "%.2f ", v[2].f);
 233                v += 3;
 234             }
 235             else
 236                v += 2;
 237             tc0 =  (GLuint (*)[4])((GLubyte *)tc0 +  tc0_stride);
 238          }
 239          if (DO_TEX1) {
 240             v[0].ui = tc1[0][0];
 241             v[1].ui = tc1[0][1];
 242             if (TCL_DEBUG) fprintf(stderr, "t1: %.2f %.2f ", v[0].f, v[1].f);
 243             if (DO_PTEX) {
 244                if (fill_tex & (1<<1))
 245                   v[2].f = 1.0;
 246                else if (rqcoordsnoswap & (1<<1))
 247                   v[2].ui = tc1[0][2];
 248                else
 249                   v[2].ui = tc1[0][3];
 250                if (TCL_DEBUG) fprintf(stderr, "%.2f ", v[2].f);
 251                v += 3;
 252             }
 253             else
 254                v += 2;
 255             tc1 =  (GLuint (*)[4])((GLubyte *)tc1 +  tc1_stride);
 256          }
 257          if (DO_TEX2) {
 258             v[0].ui = tc2[0][0];
 259             v[1].ui = tc2[0][1];
 260             if (DO_PTEX) {
 261                if (fill_tex & (1<<2))
 262                   v[2].f = 1.0;
 263                else if (rqcoordsnoswap & (1<<2))
 264                   v[2].ui = tc2[0][2];
 265                else
 266                   v[2].ui = tc2[0][3];
 267                v += 3;
 268             }
 269             else
 270                v += 2;
 271             tc2 =  (GLuint (*)[4])((GLubyte *)tc2 +  tc2_stride);
 272          }
 273          if (TCL_DEBUG) fprintf(stderr, "\n");
 274       }
 275    }
 276 }
 277
 278
 279
 280 static void TAG(init)( void )
 281 {
 282    int sz = 3;
 283    if (DO_W) sz++;
 284    if (DO_NORM) sz += 3;
 285    if (DO_RGBA) sz++;
 286    if (DO_SPEC || DO_FOG) sz++;
 287    if (DO_TEX0) sz += 2;
 288    if (DO_TEX0 && DO_PTEX) sz++;
 289    if (DO_TEX1) sz += 2;
 290    if (DO_TEX1 && DO_PTEX) sz++;
 291    if (DO_TEX2) sz += 2;
 292    if (DO_TEX2 && DO_PTEX) sz++;
 293
 294    setup_tab[IDX].emit = TAG(emit);
 295    setup_tab[IDX].vertex_format = IND;
 296    setup_tab[IDX].vertex_size = sz;
 297 }
 298
 299
 300 #undef IND
 301 #undef TAG
 302 #undef IDX